Helleborus spec., Amsterdam, ventral (left) and dorsal; the puparium is ventrally glued with frass in the mine
rear spiracula, dorsal
Helleborus niger, Diemen
The difference in colour in the puparia is striking. Perhaps the black brown puparia are parasitised, but also de Meijere (1926a) described the puparium as brown. Note also the strikingly two-coloured rear spiracula.